Home / 281,925.06-388,680.15-223,974.03

Finding the Fourth Proportional to 281,925.06, 388,680.15 and 223,974.03

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Solution

The fourth proportional to 281,925.06, 388,680.15 and 223,974.03 is: 308,785.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,925.06 : 388,680.15 = 223,974.03 : x
  2. Step 2: Convert to fraction form
    281,925.06/388,680.15 = 223,974.03/x
  3. Step 3: Cross multiply
    281,925.06x = 388,680.15 × 223,974.03
  4. Step 4: Simplify right side
    281,925.06x = 87,054,259,576.50
  5. Step 5: Solve for x
    x = 87,054,259,576.50/281,925.06
  6. Step 6: Final answer
    x = 308,785.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.